Question

十二分之七×3.5等于多少过程？

Answer 1

7/12×3.5=7/12×7/2=49/24=1又1/24

Answer 2

7/12×3.5
=7/12×7/2
=49/24

Answer 3

7/12×3.5=49/24

Answer 4

7/12×3.5=7/12＋42/12＝49/24